You are standing 100 Meters away from your car when an alligator appears 20meters away from you on the opposite side and you start to run with a speed of 5m/s while the alligator's speed was 8m/s towards you. Will you reach your car before the alligator reaches you? Why?
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So if you're running @ 5 m/s at a distance of 100m, then it'll take you 20 seconds to get to the car. This is because distance/velocity=time. ••••• Now the Alligator is another story. He has to run 20m+100m and he runs @ 8 m/s. Using the same equation again, d/v= time, you will find that it takes the alligator 15 seconds to get to your car. So if it takes 20 secs for you to get to safety, and 15 secs for the alligator to maul you, if say you would die.
Related Questions
Which example best shows how taxonomy can help us understand the evolutionary relationships among species?A-Physical comparisons of species can show how two organisms are related. B-Phylogenetic trees show evolutionary relationships among organisms. C-Different species are grouped together. D-Binomial nomenclature can show the most recent ancestor of two species.
A juggler throws a bowling pin straight up with an initial speed of 9.20m/s. How much time elapses before the pin reaches the juggler's hands?
Define SI systems of units
a car travelling at 36 km/hr due north turns west in 5 s under constant acceleration and maintains the same speed. the acceleration of the car is
Answers
Potential energy = (mass) x (gravity) x (height)
1,568 J = (40 kg) x (9.8 m/s²) x (height)
Divide each side
by 392 Newtons: Height = (1,568 N-m) / 392 N
= 4 meters .
Answer:
B) 4.0m
Explanation:
Answers
Answer:
Change in gravitational potential energy of the chair is,
Explanation:
It is given that,
Mass of the chair, m = 12 kg
Distance of the second floor from the ground, h = 3.3 m
The position of ground at h = 0
Let is the change in gravitational potential energy of the chair. Initial potential f the chair is equal to 0.
or
So, the change in the gravitational potential energy of the chair is 390 joules.
Final answer:
The change in gravitational potential energy of the chair is +385 J.
Explanation:
The change in gravitational potential energy of the chair can be calculated using the formula ΔPE = mgh, where m is the mass of the chair, g is the acceleration due to gravity, and h is the change in height. In this case, the mass of the chair is 12 kg, the acceleration due to gravity is 9.8 m/s², and the change in height is 3.3 m. Plugging these values into the formula, we get ΔPE = (12 kg)(9.8 m/s²)(3.3 m) = 384.72 J. Therefore, the change in gravitational potential energy of the chair is approximately +385 J.
Learn more about gravitational potential energy here:
#SPJ3
Answers
Answer:
Blocking/staging
Explanation:
Blocking/staging is the name for when a director decides where and when performers move and position themselves on the stage.
Moreover, Blocking a dream sequence is merely "working on the details of an actor's movements with regard to the camera." We can also reckon of blocking as the dance routines of a dance or a ballet: all the components on the set must move in perfect sync with one another (performers, extras, automobiles, crew, machinery).
density?
Answers
Answer:
8000 kg/cm^3
Explanation:
The density formula is P = M/V
Density = P = ? expressed in kg/m^3
M = mass = 40,000 kg
V = volume = 5 m^3
P = 40,000/5
P = 8000 kg/m^3
Answers
When waves propagate in a medium, then the motion of the medium is parallel to a longitudinal wave and perpendicular to a transverse wave.
What are sound waves?
A sound wave is caused by disturbances in the path of propagation of the particles. These disturbances can be caused in the medium like solid, liquid, and air.
There are two main types of waves namely - Transverse waves and longitudinal waves.
Transverse Waves - These waves are the waves where the particles in a medium travel perpendicular to the direction of the wave. These waves do not require a medium to travel and can travel in a vacuum also.
Longitudinal waves - These waves are the waves where the particles of the medium travel parallel to the direction of the wave and these waves require a medium to travel and hence, cannot travel in a vacuum.
Thus, we can conclude that the motion of the medium is parallel to a longitudinal wave and perpendicular to a transverse wave.
Learn more about the sound wave here:
Answer: The correct answer is the motion of the medium is parallel to a longitudinal wave and perpendicular to a transverse wave.
Explanation:
There are two main types of waves:
1. Transverse Waves: These waves are the waves where the particles in a medium travel perpendicular to the direction of the wave. These waves do not require a medium to travel and can travel in vacuum also. For Example: Light waves.
2. Longitudinal waves: These waves are the waves where the particles of the medium travel parallel to the direction of the wave and these waves require a medium to travel and hence, cannot travel in vacuum. For Example: Sound waves.
From the given options, the correct answer is the motion of the medium is parallel to a longitudinal wave and perpendicular to a transverse wave.
B. energy
C. charge
D. the speed of light
Answers
Correct answer is D.
The famous mass-energy equivalence equation is given by Einstein. It states that mass is concentrated energy. The equivalence is expressed as, E=mc². E stands for energy equivalent to the mass m and c is the speed of light.